California produces 90 percent of the US strawberry crop, but growers face curbs on toxic chemicals that have helped their industry expand. Can a system centered on mass production become more sustainable?

Sunrise over the Earth. Hydrofluorocarbons were created to protect the ozone layer, but their stable nature makes them an extremely potent greenhouse gas.
NASANovember 2, 2017

What the Montreal Protocol has done for the ozone hole threat other international accords could do for climate change – if we all agree.

Conventional wisdom says Barack Obama will hit political obstacles on the way to fulfilling his climate ambitions. But they might be easier to sidestep than you think,
EPA/Michael Reynolds/AAPAugust 18, 2015

Much has been made of the domestic political roadblocks between US President Barack Obama and climate action. But by using existing treaties he can get around the hostile Congress and help cut global emissions.

Many people think of sunburn and skin cancer when they hear about the ozone hole. But more ultraviolet (UV) radiation isn’t the only problem. The ozone hole has also led to dramatic changes in Southern…

In 2012 and 2013 parts of New Zealand suffered the worst drought in 70 years.
Dave Young/FlickrOctober 6, 2014

Over 2012 and 2013, parts of New Zealand experienced their worst drought in nearly 70 years. Drought is the costliest climate extreme in New Zealand; the 2012-2013 event depressed the country’s GDP by…

By collecting air at pristine Cape Grim since 1978, scientists have been able to track the concentration of ozone depleting substances.
AAP/Bureau of MeteorologySeptember 12, 2012

SAVING THE OZONE: Part four in our series exploring the Montreal Protocol on Substances that Deplete the Ozone Layer – dubbed “the world’s most successful environmental agreement” – looks at the substances…

For more than three decades Antarctica has experienced the most severe depletion of stratospheric ozone.
NASA Goddard Photo and VideoSeptember 10, 2012

SAVING THE OZONE: Part two in our series exploring on the Montreal Protocol on Substances that Deplete the Ozone Layer – dubbed “the world’s most successful environmental agreement”. Yesterday’s article…